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Jan
Meaning Of 95 Confidence Interval. In other words it may not be 124 but you are reasonably sure that it is not very different. The confidence level is 95. What a 95 Confidence Interval Is. What does this mean.
Because the true population mean is unknown this range describes possible values that the mean could be. Out of all the 90 confidence intervals that have ever been calculated we expect 90 of them to have contained the true parameter. 175cm 62cm This says the true mean of ALL men if we could measure all their heights is likely to be. The confidence level is 95. So that the proportion of the range contains the true value of the parameter that will be equal to the confidence level. Due to natural sampling variability the sample mean center of the CI will vary from sample to sample.
The confidence level is 95.
Out of all the 90 confidence intervals that have ever been calculated we expect 90 of them to have contained the true parameter. This means that 95 of the time you can expect your estimate to fall between 056 and 048. The 95 Confidence Interval we show how to calculate it later is. Because the true population mean is unknown this range describes possible values that the mean could be. This avoids the awkward if you were to repeat this pro. Out of all the 90 confidence intervals that have ever been calculated we expect 90 of them to have contained the true parameter.